Temporary binder for papers.



No. 876,078. PATENTED JAN. 7, 1908.

' H. N. MoCLAIN.

TEMPORARY BINDER FOR PAPERS.

APPLICATION FILED FEB. 18, 1907.

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HOYT N. MCGLAIN, OF OlllCAtlO, ILLlNOlS.

TEMPORARY BINDER FOR PAPERS.

Specification of Letters Patent.

Patented Jan. '7, 1908.

Application filed February 18.1907- Serial No. 357623.

To all whom it may concern:

Be it known that 1, lion N. AiCCLAlN, a citizen of the United States, residing at Chicago, Cook vented certain new and useful Improvements in Temporary Binders for Papers, of which the following is a s peci'lication.

This invention relates to be employed for fastening together, in book form, a large number of perforated leaves of y 1 the lormer.

paper or the like.

The ob ects ot the invention are to provide binding posts of this character which will I serve to bind the leaves without the use of a binder frame,- to provide binding posts havmg each a detachable head that may be easily and quickly attached or detached; and

in general to provide a simple, convenient device for the p urposo named.

The invention consists in the matters hereinafter described, and particularly pointed out in the appended claims; and will be more readily understood l'rom relcrence to the accompanying drawings, in which- Figure 1 is a vertical sectional view of one of the devices in position in a loose-leaf book; Fig. 2 is a mrspective view of a loose-leaf book bound together with two of the devices; Fig. 3 is an elevational view of a sectional binder post embodying the invention; Fig. 4 is a sectional detail view of the detachable head or button; and Fig. 5 is a plan View of the resilient .member of said head or button.

In Figs. 1 and 2, 1 designates a stack 01' loose .leaves, each of which is provided with the usual perforations adjacent to one edge thereof, and 2 designates a pair of suitable. covers, made of comparatively heavy ma terial. Each binder device comprises a post, 3 or 18, a permanent head 4, and a detachable head or button, designated as a whole The permanent head 4 is riveted in place, as shown at 6 in Fig. 1. The opposite end of the post is formed with a rounded end or knob 7 which is partly divided body of the post by an annular groove 8, and is preferably spheroidal in form as shown. The detachable head,

split annular member as 9, for engaging the knob 7 of the post; an annular member 10- 11 immediately inclosing and retaining said im member 9; and the enlarged portion 5*12 of the head. Describing these parts in detail, the enlarged portion of the button is binding posts to l 5, is composedpreferably of three principal parts, namely: a

county, Illinois, have inl l I l I l l l l l 1 l from the formed by the union of two parts, one, the circular disk 5, having the downturned flange 5, the other, a circular piece 12, havinga central circular opening 14 and an upturned rim l2 litting tightly within the llange 5. 01' the other compound member member 1 1 is tightly united with the outer member It) by means of an upturned llango it) otthe latter being clenched upon. a downturned llange 11. of

This inner member 1] is provided with a central circular opening, and its inner periphery is turned upwardly, then outwardly, as shown at 15, for loose engagement with the inner periphery o'l member 12. The looseness oil this engagement permits i11- dependent and relative rotation of the two compound members 5--12 and ].0-11.

The aforesaid member 5) is preferably l ormed as a ring, having a circular periphery and a triangular inner periphery and with a radial cut or slit S) at the vertex of one ol the angles ol' the opening. .l preler that the inner edges, [(3, be slightly curved outwardly. and it is nrressary that a circle tangent to each ol said edges will be smaller in diameter than that of the knob T. The malerial preterably metal ol which the member l) is made is sulliciently resilient to insure its closing or returning to normal torm atter being sprung apart by being lorced over the knob 7 ot the post 3. The inner diameter of the holding member flange 11 is oi course larger than the outer diameter oi the split ring S), to permit tree expansion of the latter; and the ring is loosely held, as indicated in Fig. l. I

To apply the binder, its post 3 is run through the registered perforations of the sheets to be bound. the top cover 2 laid on, and the head 5 applied with su llicient pressure to force the split ring E) over the spheroidal knob 7 into the groove 8. The button may be removed in. a second, by simply pulling it oil. The convenience ol this feature will readily be appreciated.

The post may be integral (as shown in Fig. .1) or composed ol sections 18 as shown in Fig. 3, the sections in the latter construction being conveniently united by male and female threaded engagement as indicated at If) The length ol the post may be extended lelinitely by connecting in. extra sections. Various immaterial niodilimrtions may suggest themselves to one skilled in the art, and i do not limit the invention to the precise construction and conformations of parts herein shown and described.

I claim as my invention: A temporary binder consisting of a freely 5 removable individually separate post, one end of said post being provided With a fixed flange like confining head the opposite unheaded end of said post terminating in a rounded unmutilated portion having a cir- 10 cumferential groove a detachable head adapted to telescope over said unheaded end and having its inner side projecting laterally beyond the post to form a flange like confining surface, and an internal spring locking member seated in said detachable 15 head and adapted to have snap-action engagement with said grooved portion. p 7

jfHOYT N. MOCLAIN.

Witnesses V G. H. S. DUNN,

J.J.D1EHL.v I I v 

